28052720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20627}}^1$

素因数の和:20657

約数の個数: 40

約数和(自身を含む): 69062544

約数和(自身を除く): 41009824

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20627, 41254, 82508, 103135, 165016, 206270, 330032, 350659, 412540, 701318, 825080, 1402636, 1650160, 1753295, 2805272, 3506590, 5610544, 7013180, 14026360, 28052720]

約数ペア:

[(1, 28052720), (2, 14026360), (4, 7013180), (5, 5610544), (8, 3506590), (10, 2805272), (16, 1753295), (17, 1650160), (20, 1402636), (34, 825080), (40, 701318), (68, 412540), (80, 350659), (85, 330032), (136, 206270), (170, 165016), (272, 103135), (340, 82508), (680, 41254), (1360, 20627)]